TurboIMAGE/XL Database Management System Reference Manual MPE/iX V6.5 (30391-90011)
430 Chapter8
Using the Database Utilities
>>ENABLE
modification intrinsics (DBPUT, DELETE, and DBUPDATE with CIU ON).
DUMPING is an option for Hewlett-Packard support use, development, and debugging
only. When enabled, the TurboIMAGE/XL abort procedure copies the
user's stack and the database control blocks to files if a TurboIMAGE/XL
procedure aborts.
HWMPUT enables DBPUT action of placing entries at the high-water mark first,
instead of at the delete chain head.
ILR enables the Intrinsic Level Recovery facility. TurboIMAGE/XL maintains
structural integrity without ILR enabled.
INDEXING enables third-party indexing (TPI) for the database if not already done by
the third-party software when configuring the database for TPI.
Third-party indexing provides the capability to do generic key searches,
multiple keyword retrievals, and sorted sequential searches on any
database. Refer to your vendor documentation for information on TPI.
LOGGING enables the database roll-forward logging facility.
MUSTRECOVER enables the MUSTRECOVER option for the database. If logging is not
already enabled, it is automatically enabled when MUSTRECOVER is
enabled. While MUSTRECOVER is enabled, the database cannot be
accessed after a system failure until the database is recovered with
roll-forward or roll-back recovery.
PREFETCH enables the prefetching of data blocks required by the DBPUT and
DBDELETE intrinsics under certain conditions. Refer to "Coordinating
Additions to a Database" or "Coordinating Deletions from a Database" in
chapter 4 for additional information.
RECOVERY enables the database for recovery.
ROLLBACK enables the database roll-back logging facility. A warning displays if the
log file does not exist, and the database remains disabled for roll-back
recovery. If logging is not in effect already, it will be enabled automatically.
Default Conditions
Access is Enabled
Autodefer is Disabled
Dumping is Disabled
HWMPUT is Disabled
ILR is Disabled
Indexing is Disabled
Logging is Disabled
Mustrecover is Disabled
Prefetch is Disabled
Recovery is Disabled
Roll-Back is Disabled